TML/SIDEX is a BEEP (Block Entensible Exchange Protocol) based SDK for implementing peer to peer and/or client/server communication on various platforms and target languages. It provides type safe data modelling with a simple XML based format that minimizes errors, and its synchronous, asynchronous, and multithreaded interfaces guarantee performance.

SmartGit/Hg is a graphical user interface for Git and Mercurial which can work with SVN
repositories.
It supports cloning from common repository providers (e.g.,
GitHub,
Assembla),
assists Git newbies,
and also offers the advanced, powerful Git features.
It provides several tools to help create clean commits, for example by
allowing the user to commit just parts of changes files and reordering
and squashing unpushed commits.
If you are using GitHub or GitHub Enterprise,
SmartGit/Hg can work easily with pull
requests (creation,
resolving) and commit comments.
SmartGit/Hg ships with a built-in SSH client,
file comparer, and merge tool which are capable
of syntax coloring for many languages.

Nag is a Web-based application built upon the Horde Application Framework that provides a simple, clean interface for managing online task lists (i.e. TODO lists). It includes strong integration with the other Horde applications and offers shared task lists.

Ingo is an email-filter management application. It
is fully internationalized, integrated with Horde
and the IMP Webmail client, and supports both
server-side (Sieve, procmail, maildrop) and client-side
(IMAP) rule creation.

The Horde Application Framework is a modular, general-purpose Web application framework. It provides an extensive array of classes that are targeted at the common problems and tasks involved in developing modern Web applications.

Hnefatafl is an implementation of the Norse board game. Hnefatafl 11x11, 13x13, Tablut, and many other variants are supported using rulesets. There is a command-line interface and an X interface (the latter is optional).